Novel thermal shrinkage furnace and ejector rod calibration tool
By adopting a new type of heat shrink furnace and top rod calibration fixture in lithium-ion battery production, and using micrometer calibration components to accurately calibrate the self-rotating top rod, the problem of poor battery appearance caused by inconsistent top rod height was solved, and the appearance consistency and calibration efficiency of the battery after heat shrinking were improved.
Patent Information
- Application Number
- CN202422793371.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-15
AI Technical Summary
In the current lithium-ion battery production process, inconsistent height of the self-rotating push rod leads to poor appearance after heat shrinking of the battery, and push rod calibration is time-consuming, making it impossible to guarantee uniform height across multiple workstations.
A new type of heat shrink oven and top rod calibration fixture are adopted, including a rotary table, a rotating top rod, a rotation drive component, and a top rod calibration fixture. Micrometers such as micrometers are used to accurately calibrate the rotating top rods to ensure that the height of each top rod is consistent.
This achieves consistency in the appearance of the battery after heat shrinking, improves the efficiency and accuracy of top rod calibration, and avoids abnormal battery appearance.
Smart Images
Figure CN223501925U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lithium-ion battery production equipment, specifically to a novel heat shrink furnace and a top rod calibration fixture. Background Technology
[0002] In the past decade, the new energy industry has developed rapidly, and cylindrical lithium-ion batteries have become the main choice for many industries such as automobiles and power tools. One process in the production of cylindrical batteries is heat shrinking with a protective film, which aims to isolate the positive and negative electrodes of the battery and prevent short circuits. After being coated, the batteries need to enter a heat shrink furnace for heat shrinking treatment. The principle of heat shrinking is that the coated battery is rotated onto a rotating push rod in the heat shrink furnace via a star wheel. The battery is then heat-shrinked by a ring-shaped heating element. During the heat shrinking process, the battery rotates on the push rod to achieve complete heat shrinking. After heat shrinking, the battery is separated from the push rod and transferred to the next workstation via the star wheel. Inconsistent push rod heights can cause poor appearance of the batteries after batch heat shrinking during separation and transfer. Currently, the push rod height is repeatedly adjusted based on experience, and it is impossible to guarantee uniform height across multiple workstations. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a new type of heat shrink oven and a top rod calibration fixture, which solves the problems of inconsistent top rod height and long top rod calibration time in battery heat shrink processing, thereby improving the consistency of the appearance after battery heat shrink processing.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a novel heat shrink oven, including a rotary table, rotating push rods, and a rotary drive component. Several rotating push rods are circumferentially distributed on the rotary table, and a battery placement position is provided at the top of each push rod. The rotary table and the rotating push rods are driven by the rotary drive component to rotate around their own central axis. The oven also includes a push rod calibration fixture, which includes a calibration base and a micrometer calibration component. The calibration base is positioned above the rotary table, and the micrometer calibration component is positioned on the calibration base. The micrometer calibration part of the micrometer calibration component is vertically adjustable relative to the calibration base. A micrometer calibration area is provided below the micrometer calibration component. The rotary table rotates, causing each push rod to sequentially pass through the micrometer calibration area. The rotary table drives each push rod through the micrometer calibration area, and the push rod calibration fixture calibrates each push rod sequentially, facilitating control and adjustment of the height of the rotating push rods and avoiding any impact on the appearance of the heat-shrink battery.
[0005] As a preferred option, a micrometer is used for micrometer calibration. A micrometer allows for more precise measurement and calibration.
[0006] As a preferred embodiment, the micrometer calibration part of the micrometer calibration component is connected to a calibration rod, and the bottom end face of the calibration rod is the calibration end face.
[0007] As a preferred embodiment, a chamfer is provided at the junction of the calibration end face and the side end face of the calibration rod.
[0008] As a preferred option, the calibration substrate is also connected to a connector, which is detachably connected to the mounting column located outside the rotary table.
[0009] As a preferred embodiment, the connector includes a first clamping block, a second clamping block, and connecting bolts. The first and second clamping blocks are connected by bolts, and the first and second clamping blocks mate to connect with the mounting column. The calibration base is connected to either the first or second clamping block. By connecting the connector to the mounting column at different heights, the top rod calibration fixture can be installed at a height suitable for calibrating the self-rotating top rod.
[0010] Based on the same concept, this utility model also provides a top rod calibration fixture, including a mounting column, a connector, a calibration base, and a micrometer calibration component. The mounting column is erected vertically, the connector is detachably connected to the mounting column, the calibration base is connected to the connector, and a micrometer calibration component is provided on the calibration base. The micrometer calibration component is vertically positioned, and the micrometer calibration part of the micrometer calibration component can be vertically adjusted relative to the calibration base.
[0011] As a preferred embodiment, the micrometer calibration part of the micrometer calibration component is connected to a calibration rod, and the bottom end face of the calibration rod is the calibration end face.
[0012] As a preferred option, the micrometer calibration component is a micrometer.
[0013] As a preferred embodiment, the connector is provided with a connecting rod, and the calibration base is connected to the connecting rod and set on the connector through the connecting rod.
[0014] Compared with the prior art, the present invention has the following advantages: by using the top rod calibration fixture, the present invention can accurately and quickly calibrate the rotating top rod of the heat shrink furnace, so that the height of each rotating top rod is consistent, thus avoiding the phenomenon of poor appearance after the battery is heat-shrinked. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of a heat shrink oven;
[0017] Figure 2 A schematic diagram of the top rod calibration fixture;
[0018] Figure 3 A side view of the tooling for calibrating the push rod;
[0019] In the diagram: 1. Rotary table, 2. Rotating push rod, 3. Push rod calibration fixture, 31. Calibration base, 32. Micrometer calibration component, 33. Calibration rod, 34. Connector, 35. Mounting column, 4. Heating mechanism. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1
[0022] like Figure 1 As shown, a novel heat shrink oven includes a main body and a top rod calibration fixture 3. The main body is a prior art product, including a rotary table 1, a rotating top rod 2, and a rotary drive component. The rotary table 1, the rotating top rod 2, and the rotary drive component are all structures present in existing heat shrink ovens. Several rotating top rods 2 are circumferentially distributed on the rotary table 1. Each rotating top rod 2 is vertically set and rotatably connected to the rotary table 1. Each rotating top rod 2 can rotate relative to the rotary table 1 around its own central axis. The rotary table 1 and the rotating top rod 2 are driven by the rotary drive component to rotate around their own central axes. That is, while each rotating top rod 2 rotates, it also revolves around the central axis of the rotary table 1. A battery placement position is provided at the top of the rotating top rod 2. After the battery is placed vertically in the battery placement position, the battery is driven to rotate by the rotating top rod 2 and also revolves around the rotary table 1. The rotary table 1 and each rotating top rod 2 can share a single rotary drive component, or they can each have their own rotary drive component. The way the rotary drive component drives the rotary table 1 and / or the rotating top rod 2 is the same as that of the prior art heat shrink furnace. This patent does not provide a more specific description of the main body of the heat shrink furnace.
[0023] The heat shrink oven also includes a heating mechanism 4, which includes a heating oven cover and an adjustment drive mechanism. The heating oven cover is an arc-shaped cover and is equipped with heating tubes. The rotary table 1 is located on one side of the inner arc surface of the heating oven cover. The adjustment drive mechanism drives the heating oven cover to move between the standby position and the heating position. When the heating oven cover is in the standby position, it is located away from the rotary table 1. At this time, it can be loaded or unloaded onto the rotary table 1 or calibrated onto its respective rotating rod 2. When the heating oven cover is in the heating position, it is located close to the rotary table 1. The heating oven cover is located on the side of the rotary table 1 and dissipates heat upwards from the rotary table 1. The rotary table 1 rotates and drives the batteries on their respective rotating rods 2 to pass through the heating area of the heating oven cover in sequence.
[0024] Please see Figures 1-3 The top rod calibration fixture 3 includes a calibration base 31 and a micrometer calibration component 32. The calibration base 31 is positioned above the rotary table 1 and can be installed on the furnace body of the heat shrink oven or on a dedicated mounting structure. The micrometer calibration component 32 is mounted on the calibration base 31 and is vertically installed. The micrometer calibration part of the micrometer calibration component 32 is located at the bottom of the micrometer calibration component 32 and can be vertically adjusted relative to the calibration base 31. The area above the rotary table 1 below the micrometer calibration part is designated as the micrometer calibration zone. The rotary table 1 rotates and drives each top rod 2 to pass through the micrometer calibration zone in sequence for height calibration. After the top rod 2 rotates to the micrometer calibration zone, the height of the top rod 2 is calibrated using the micrometer calibration component 32. The consistent height of each top rod 2 ensures that the battery has a consistent height during heat shrinking, thus avoiding abnormal battery appearance due to excessive height deviation of each top rod 2.
[0025] To improve the calibration effect of the self-rotating push rod 2, the micrometer calibration component 32 is a high-precision micrometer or the measuring micrometer head of a micrometer. The micrometer calibration component 32 is installed on the calibration base 31 and uses the calibration base 31 or its own reference component as a reference for measurement and calibration. After determining the height position of the calibration base 31, the respective push rods 2 can be calibrated in a consistent manner.
[0026] The micrometer calibration part of the micrometer calibration component 32 is also connected to a calibration rod 33. The bottom end face of the calibration rod 33 is the calibration end face, which contacts the top end of the rotating push rod 2 during the calibration process. Furthermore, a chamfer is provided at the junction of the calibration end face and the side end face of the calibration rod 33 to ensure the flatness of the calibration end face during calibration.
[0027] In some embodiments, the calibration base 31 is further connected to a connector 34, which is detachably connected to a mounting column 35 disposed on the outside of the rotary table 1. The mounting column 35 serves as a dedicated mounting structure for the calibration base 31. The mounting column 35 is perpendicular to the upper end face of the rotary table 1, and the connector 34 is detachably connected to the mounting column 35 to facilitate the disassembly and assembly and height adjustment of the top rod calibration fixture 3.
[0028] As a specific example of the connector 34, the connector 34 includes a first clamping block, a second clamping block, and a connecting bolt. The first clamping block and the second clamping block are respectively disposed on both sides of the mounting column 35, and then the two are connected by bolts so that they can be clamped to the outside of the mounting column 35, realizing a detachable connection between the connector 34 and the mounting column 35. Preferably, the opposing end faces of the first clamping block and the second clamping block are provided with clamping grooves. After the two clamping blocks are embedded into the outside of the mounting column 35 through their respective clamping grooves, the first clamping block and the second clamping block are connected by bolts.
[0029] The calibration substrate 31 can be directly connected to the first clamping block or the second clamping block, or it can be connected to the first clamping block or the second clamping block through a connecting rod.
[0030] The novel heat shrink oven of this invention enables rapid calibration of each rotating rod 2, avoiding abnormal appearance of batteries after heat shrinking due to inconsistent height of the rotating rod 2.
[0031] Example 2
[0032] Please see Figure 2 and Figure 3 A top rod calibration fixture includes a mounting column 35, a connector 34, a calibration base 31, and a micrometer calibration component 32. The mounting column 35 is vertically installed, the connector 34 is detachably connected to the mounting column 35, the calibration base 31 is connected to the connector 34, and the micrometer calibration component 32 is installed on the calibration base 31. The micrometer calibration component 32 is vertically installed, and the micrometer calibration part of the micrometer calibration component 32 can be vertically moved and adjusted relative to the calibration base 31.
[0033] The connector 34 can be installed at a suitable height on the mounting column 35, so that the calibration base 31 is at a suitable height, and thus the micrometer reference part is at a suitable installation height. The area below the micrometer reference part is the micrometer calibration area. After the rotary table 1 of the heat shrink oven rotates and moves the self-rotating top rod 2 to the micrometer calibration area, the height of the self-rotating top rod 2 can be calibrated using the micrometer calibration part 32.
[0034] The micrometer calibration component 32 is a micrometer with high measurement accuracy, which enables precise calibration of each rotating rod 2.
[0035] The connector 34 is provided with a connecting rod. The calibration base 31 is connected to the connecting rod and is set on the connector 34 through the connecting rod. The connecting rod allows the calibration base 31 and the micrometer calibration rod 33 to extend into the interior of the heat shrink oven, which facilitates the calibration of the self-rotating top rod 2.
[0036] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A novel heat shrink oven, comprising a rotary table (1), rotating push rods (2), and a rotary drive, wherein a plurality of rotating push rods (2) are arranged circumferentially on the rotary table (1), and a battery placement position is provided at the top of the rotating push rods (2); the rotary table (1) and the rotating push rods (2) are driven by the rotary drive to rotate around their own central axis, characterized in that: It also includes a top rod calibration fixture (3), which includes a calibration base (31) and a micrometer calibration component (32). The calibration base (31) is set above the rotary table (1), and the micrometer calibration component (32) is set on the calibration base (31). The micrometer calibration part of the micrometer calibration component (32) moves vertically relative to the calibration base (31). A micrometer calibration area is set below the micrometer calibration component (32). The rotary table (1) rotates and drives each top rod (2) to pass through the micrometer calibration area in sequence.
2. The novel heat shrink oven according to claim 1, characterized in that: The micrometer calibration piece (32) is a micrometer.
3. A novel heat shrink oven according to claim 2, characterized in that: The micrometer calibration part of the micrometer calibration component (32) is connected to a calibration rod (33), and the bottom end face of the calibration rod (33) is the calibration end face.
4. A novel heat shrink oven according to claim 3, characterized in that: A chamfer is provided at the junction of the calibration end face and the side end face of the calibration rod (33).
5. A novel heat shrink oven according to claim 4, characterized in that: The calibration base (31) is also connected to a connector (34), which is detachably connected to the mounting column (35) set outside the rotary table (1).
6. A novel heat shrink oven according to claim 5, characterized in that: The connector (34) includes a first clamping block, a second clamping block and a connecting bolt. The first clamping block and the second clamping block are connected by bolts and the first clamping block and the second clamping block are connected to the mounting column (35). The calibration base (31) is connected to the first clamping block or the second clamping block.
7. A top rod calibration fixture (3), characterized in that: It includes a mounting column (35), a connector (34), a calibration base (31), and a micrometer calibration component (32). The mounting column (35) is erected, the connector (34) is detachably connected to the mounting column (35), the calibration base (31) is connected to the connector (34), and the micrometer calibration component (32) is provided on the calibration base (31). The micrometer calibration component (32) is erected vertically and the micrometer calibration part of the micrometer calibration component (32) can be vertically moved and adjusted relative to the calibration base (31).
8. The top rod calibration fixture (3) according to claim 7, characterized in that: The micrometer calibration part of the micrometer calibration component (32) is connected to a calibration rod (33), and the bottom end face of the calibration rod (33) is the calibration end face.
9. The top rod calibration fixture (3) according to claim 7, characterized in that: The micrometer calibration piece (32) is a micrometer.
10. The top rod calibration fixture (3) according to claim 7, characterized in that: A connecting rod is provided on the connector (34), and the calibration base (31) is connected to the connecting rod and set on the connector (34) through the connecting rod.